Comparison of Samsung U450 DoubleTake and Samsung Z650i [S]ave
| Attribute |  Samsung U450 DoubleTake × |  Samsung Z650i × |
|---|---|---|
| General | ||
| Brand | Samsung | Samsung |
| Launch | ||
| Announced | 2009-07-01 | 2006-10-01 |
| Body | ||
| Width (mm) | 17 | 15.9 |
| Length (mm) | 108 | 101 |
| Height (mm) | 53 | 51 |
| Weight (g) | 100 | 95 |
| SIM | Mini-SIM | Mini-SIM |
| Network | ||
| Technology |
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| 2G bands |
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| 3G bands |
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| Speed |
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| Memory | ||
| Card slot | microSD (dedicated slot) | microSD (dedicated slot) |
| Internal | - |
|
| Display | ||
| Size (in) | 2.1 | 2.2 |
| Resolution (px) | 176 x 220 | 240 x 320 |
| Display Type | TFT | TFT |
| Battery | ||
| Type | Removable | Removable |
| Capcity (mAh) | Li-Ion | Li-Ion |
| Main Camera | ||
| Main Camera Type | Single | Single |
| Main Camera Properties |
|
|
| Main Camera Video | No | 320p |
| Selfie Camera | ||
| Selfie Camera Type | - | Single |
| Selfie Camera Properties | - |
|
| Comms | ||
| WLAN | No | No |
| Bluetooth | 2.1, A2DP | 2.0, A2DP |
| GPS | - | - |
| Radio | No | No |
| USB | microUSB 2.0 | Proprietary |
| Sound | ||
| Loudspeaker | + | + |
| 3.5mm jack | - | - |
| Misc | ||
| Colors |
|
|
| SAR EU Head (W/kg) | - | 0.39 |
| SAR Head (W/kg) | 0.72 | 0.44 |
| SAR Body (W/kg) | 0.57 | 0.35 |
| Keyboard | QWERTY | - |
| Phonebook | 1000 entries, Photocall | 1000 entries |
| Call records | Yes | 20 dialed, 20 received, 20 missed calls |
| Alert types | - | Vibration; Downloadable polyphonic, MP3 ringtones |
| Features | ||
| Messaging | SMS, MMS, Email, IM | SMS, EMS, MMS, Email |
| Browser | WAP 2.0/xHTML | iMode |
| Games | Yes | Yes + downloadable |
| Java | Yes, MIDP 2.0 | Yes, DoJa 2.5 |
| Stand-by (h) | 300 | 200 |
| Talk time (h) | Up to 5 h | Up to 4 h |
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